Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: devlink: fixed the netns refcount leak in devlinknlcmdreload. While preparing my patch series that includes netns refcount tracking, I discovered bugs in devlinknlcmdreload. Some error paths failed to release the refcount...

kernel: net: ip6_gre: require CAP_NET_ADMIN in the device netns for changelink

A flaw was found in the Linux kernel's ip6gre and ip6erspan tunnel drivers. The changelink functions in these drivers do not adequately verify administrative capabilities CAPNETADMIN across different network namespaces. This allows a local attacker, who has CAPNETADMIN in one network namespace bu...

kernel: net: ip_gre: require CAP_NET_ADMIN in the device netns for changelink

A flaw was found in the Linux kernel's IP Generic Routing Encapsulation ipgre component. This vulnerability allows a local attacker with network administration capabilities in one network namespace to modify a tunnel residing in a different network namespace where they lack privileges. This is du...

kernel: ip6: vti: Use ip6_tnl.net in vti6_changelink()

A flaw was found in the Linux kernel's IPv6 Virtual Tunnel Interface vti6 component. An unprivileged local user, particularly within a user namespace, could exploit a vulnerability related to incorrect network namespace handling during the movement of a vti6 tunnel. This issue can lead to a kerne...

kernel: net: qrtr: restrict socket creation to the initial network namespace

A flaw was found in the Linux kernel's QRTR Qualcomm IPC Router networking component. An unprivileged local attacker can create a QRTR socket in a separate network namespace. Due to improper handling of global state variables, this allows the attacker to send datagrams and control-plane messages ...

kernel: xfrm: input: hold netns during deferred transport reinjection

A flaw was found in the Linux kernel's xfrm input component. The transport-mode reinjection process, which handles network packet re-injection, stores a network namespace pointer that must remain valid until a deferred callback completes. However, a missing reference count for the network namespa...

kernel: ip6: vti: Use ip6_tnl.net in vti6_changelink()

A flaw was found in the Linux kernel's IPv6 Virtual Tunnel Interface vti6 component. An unprivileged local user, particularly within a user namespace, could exploit a vulnerability related to incorrect network namespace handling during the movement of a vti6 tunnel. This issue can lead to a kerne...

kernel: net: qrtr: restrict socket creation to the initial network namespace

A flaw was found in the Linux kernel's QRTR Qualcomm IPC Router networking component. An unprivileged local attacker can create a QRTR socket in a separate network namespace. Due to improper handling of global state variables, this allows the attacker to send datagrams and control-plane messages ...

kernel: net: qrtr: restrict socket creation to the initial network namespace

A flaw was found in the Linux kernel's QRTR Qualcomm IPC Router networking component. An unprivileged local attacker can create a QRTR socket in a separate network namespace. Due to improper handling of global state variables, this allows the attacker to send datagrams and control-plane messages ...

SUSE CVE-2026-97419

In the Linux kernel, the following vulnerability has been resolved: hsr: broadcast netlink notifications in the device's net namespace The HSR generic netlink family sets .netnsok = true. HSR devices can live in network namespaces other than initnet. Two async notifiers broadcast events with...

CVE-2026-97939

A flaw was found in the Linux kernel's IP multicast routing subsystem. A local user with network administration privileges inside a network namespace can create an excessive number of multicast routing tables. Because these allocations are not tracked against memory control group limits, kernel...

CVE-2026-97476

A flaw was found in the Linux kernel's Reliable Datagram Sockets RDS subsystem. An unprivileged local attacker can exploit this vulnerability to cause information disclosure across isolated network environments. Because socket inspection handlers do not filter connection and socket lists by the...

CVE-2026-97608

A flaw was found in the Linux kernel's netfilter subsystem. A race condition occurs when network namespace operations are torn down before global logging backends are unregistered. A local user can exploit this timing window through sysctl or netlink interfaces to rebind a logger while it is bein...

CVE-2026-97476

In the Linux kernel, the following vulnerability has been resolved: rds: filter RDSINFO getsockopt by caller's netns The RDSINFO family of getsockopt2 options reads several file-scope global lists that are not per-netns: rdssockinfo / rds6sockinfo, rdssockincinfo / rds6sockincinfo - rdssocklist...

DEBIAN-CVE-2026-97419

In the Linux kernel, the following vulnerability has been resolved: hsr: broadcast netlink notifications in the device's net namespace The HSR generic netlink family sets .netnsok = true. HSR devices can live in network namespaces other than initnet. Two async notifiers broadcast events with...

CVE-2026-97419 hsr: broadcast netlink notifications in the device's net namespace

In the Linux kernel, the following vulnerability has been resolved: hsr: broadcast netlink notifications in the device's net namespace The HSR generic netlink family sets .netnsok = true. HSR devices can live in network namespaces other than initnet. Two async notifiers broadcast events with...

EUVD-2026-86032

In the Linux kernel, the following vulnerability has been resolved: hsr: broadcast netlink notifications in the device's net namespace The HSR generic netlink family sets .netnsok = true. HSR devices can live in network namespaces other than initnet. Two async notifiers broadcast events with...

CVE-2026-97419

The Linux kernel contains a vulnerability in the HSR (High-availability Seamless Redundancy) generic netlink family. Because the .netnsok flag is set to true, devices can reside in various network namespaces; however, two async notifiers—hsr_nl_ringerror() and hsr_nl_nodedown()—incorrectly use ge...

CVE-2026-97419 hsr: broadcast netlink notifications in the device's net namespace

In the Linux kernel, the following vulnerability has been resolved: hsr: broadcast netlink notifications in the device's net namespace The HSR generic netlink family sets .netnsok = true. HSR devices can live in network namespaces other than initnet. Two async notifiers broadcast events with...

PT-2026-104967

In the Linux kernel, the following vulnerability has been resolved: hsr: broadcast netlink notifications in the device's net namespace The HSR generic netlink family sets .netnsok = true. HSR devices can live in network namespaces other than init net. Two async notifiers broadcast events with...